212 MISS JOAN B. PROCTER ON THE VARIATION 



having a /Vshaped upper edge ; pars glenoidalis also well 

 developed ; dividing cleft short, forming a small central foramen. 



L. dorsalis Gray. — Scapula as in L. peronii. 



L. ornatus Gray. — Scapula more elongated than in L. peronii. 



Example. 



Length of prsecoracoid 10 units. 



„ scapula 15 „ 



shaft 11-6 „ 



Breadth of „ (distal end) 5 , , 



(middle) 2-5 „ 



Length of supra-scapula 15 ,, 



Cryptotis Gthr. 



C. brevis Gthr. — Scapula equal in length to the prsecoracoid ; 

 normal in its proportions. Dividing cleft pierced horizontally as 

 in Megalophrys. 



Chiroleptis Gthr. 



C. australis Gray. — Scapula greatly developed, about once and 

 three-quarters length of prsecoracoid ; slender in the middle. 

 Shaft twice as long as broad at distal end, about once and a 

 quarter length of prsecoracoid ; pars acromialis well developed, 

 subtriangular, similar to that of Baclrachopsis melanopyga ; 

 pars glenoidalis smaller than pars acromialis; dividing cleft 

 pierced obliquely. 



Example. 



Length of prsecoracoid 10 units. 



,, scapula 17 ,, 



,, „ shaft 13 „ 



Breadth of „ (distal end) 7 ,, 



„ ,, (middle) 2 „ 



Length of supra-scapula 1 2 (?) „ 



C. platycephalus Gthr. — Scapula similar in form to that of 

 G. australis, but much shorter in proportion. 



Example. 



Length of prsecoracoid 10 units. 



„ scapula 11 '2 ,, 



Heleioporus Gray. 



//. albopunctatus Gray. — Scapula abnormally developed ; twice 

 and a half as long as prsecoracoid ; slender in the middle, 

 greatly expanded at distal end, where it is almost the length of 

 the picecoracoid in width. Shaft once and three-quarters length 

 of prsecoracoid ; pars acromialis well developed, completely in 

 contact with crescentic head of prsecoracoid ; pars glenoidalis 

 also in contact with head of prsecoracoid, partially separated 



